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Mold apparatus for casting metals
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Mold and core structure
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Method of making metal castings
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Casting machine
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Apparatus for casting
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Apparatus for making drawn metal tubes and metal castings
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Method of casting
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Process for the distillation of coal tar
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Coke and gas-oven and process for heating the same
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Process for the distillation of coal tar and device for carrying out such process
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A process for the distillation of coal tar
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